单项选择题
A.Record the solution in the appropriate logs for future use.
B.Ask the user who reported the issue what past documentation they have.
C.Ask the user who reported the issue to explain the symptoms in detail.
D.Record what steps should be taken to resolve the issue.
多项选择题 PPTP is a combination of which of the following protocols? (Select TWO).（）
单项选择题 A new segment needs to be added to a network to provide access for 64 servers. Which of thefollowing subnets will provide the needed access and still conserve IP addresses?（）
单项选择题 Which of the following devices is used to connect a WAN to a LAN?（）